FR2297196A1 - Isobutylene recovery from 4C hydrocarbon fractions - by intermediate conversion to tert. butanol and dehydration of the alcohol - Google Patents

Isobutylene recovery from 4C hydrocarbon fractions - by intermediate conversion to tert. butanol and dehydration of the alcohol

Info

Publication number
FR2297196A1
FR2297196A1 FR7500726A FR7500726A FR2297196A1 FR 2297196 A1 FR2297196 A1 FR 2297196A1 FR 7500726 A FR7500726 A FR 7500726A FR 7500726 A FR7500726 A FR 7500726A FR 2297196 A1 FR2297196 A1 FR 2297196A1
Authority
FR
France
Prior art keywords
butanol
tert
catalyst
degrees
water
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
FR7500726A
Other languages
French (fr)
Other versions
FR2297196B1 (en
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
CHAPLITS DONAT
Original Assignee
CHAPLITS DONAT
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by CHAPLITS DONAT filed Critical CHAPLITS DONAT
Priority to FR7500726A priority Critical patent/FR2297196A1/en
Publication of FR2297196A1 publication Critical patent/FR2297196A1/en
Application granted granted Critical
Publication of FR2297196B1 publication Critical patent/FR2297196B1/fr
Granted legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C1/00—Preparation of hydrocarbons from one or more compounds, none of them being a hydrocarbon
    • C07C1/20—Preparation of hydrocarbons from one or more compounds, none of them being a hydrocarbon starting from organic compounds containing only oxygen atoms as heteroatoms
    • C07C1/24—Preparation of hydrocarbons from one or more compounds, none of them being a hydrocarbon starting from organic compounds containing only oxygen atoms as heteroatoms by elimination of water
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J31/00—Catalysts comprising hydrides, coordination complexes or organic compounds
    • B01J31/02—Catalysts comprising hydrides, coordination complexes or organic compounds containing organic compounds or metal hydrides
    • B01J31/06—Catalysts comprising hydrides, coordination complexes or organic compounds containing organic compounds or metal hydrides containing polymers
    • B01J31/08—Ion-exchange resins
    • B01J31/10—Ion-exchange resins sulfonated
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C7/00—Purification; Separation; Use of additives
    • C07C7/148—Purification; Separation; Use of additives by treatment giving rise to a chemical modification of at least one compound
    • C07C7/14858—Purification; Separation; Use of additives by treatment giving rise to a chemical modification of at least one compound with inorganic compounds not provided for before
    • C07C7/14866—Purification; Separation; Use of additives by treatment giving rise to a chemical modification of at least one compound with inorganic compounds not provided for before water
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C2531/00—Catalysts comprising hydrides, coordination complexes or organic compounds
    • C07C2531/02—Catalysts comprising hydrides, coordination complexes or organic compounds containing organic compounds or metal hydrides
    • C07C2531/06—Catalysts comprising hydrides, coordination complexes or organic compounds containing organic compounds or metal hydrides containing polymers

Abstract

Isobutylene is recovered from 4C hydrocarbon fractions by (1) heating the fraction with water in a mol. ratio 1:5 to 1:20 at 70-110 degrees C and 16-23 atmos. in the presence of a catalyst and a polar solvent present in amts. of 10-70% on wt. of water, to form a reaction mixt. contg. tert. butanol and water; (2) recovering the tert, butanol as an aq. soln. and (3) subjecting the soln. to catalytic dehydration of the tert. butanol at 80-110 degrees C under a pressure of >3 atmos. whereby the catalyst used in stages (1) and (3) is a formed ion exchange catalyst consisting of a 1-4:1-2 mixt. of a sulphonated styrene-divinyl benzene copolymer and a sulphonated thermoplastic matl. The catalyst has high activity (1.5-2 fold that of sulphonic acid exchangers), good heat resistance (4000-4500 hrs working life at 85-100 degrees C) and gives improved process output cf. known sulphonic acid exchanger catalysts.
FR7500726A 1975-01-10 1975-01-10 Isobutylene recovery from 4C hydrocarbon fractions - by intermediate conversion to tert. butanol and dehydration of the alcohol Granted FR2297196A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7500726A FR2297196A1 (en) 1975-01-10 1975-01-10 Isobutylene recovery from 4C hydrocarbon fractions - by intermediate conversion to tert. butanol and dehydration of the alcohol

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7500726A FR2297196A1 (en) 1975-01-10 1975-01-10 Isobutylene recovery from 4C hydrocarbon fractions - by intermediate conversion to tert. butanol and dehydration of the alcohol

Publications (2)

Publication Number Publication Date
FR2297196A1 true FR2297196A1 (en) 1976-08-06
FR2297196B1 FR2297196B1 (en) 1978-12-01

Family

ID=9149636

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7500726A Granted FR2297196A1 (en) 1975-01-10 1975-01-10 Isobutylene recovery from 4C hydrocarbon fractions - by intermediate conversion to tert. butanol and dehydration of the alcohol

Country Status (1)

Country Link
FR (1) FR2297196A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2422613A1 (en) * 1978-04-10 1979-11-09 Nippon Oil Co Ltd PROCESS FOR THE SEPARATION AND RECOVERY OF ISOBUTENE
FR2464241A1 (en) * 1979-08-31 1981-03-06 Toa Nenryo Kogyo Kk PROCESS FOR PRODUCING TERTIARY BUTYL ALCOHOL

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2422613A1 (en) * 1978-04-10 1979-11-09 Nippon Oil Co Ltd PROCESS FOR THE SEPARATION AND RECOVERY OF ISOBUTENE
FR2464241A1 (en) * 1979-08-31 1981-03-06 Toa Nenryo Kogyo Kk PROCESS FOR PRODUCING TERTIARY BUTYL ALCOHOL

Also Published As

Publication number Publication date
FR2297196B1 (en) 1978-12-01

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Legal Events

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